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Papers and Theses

Journals and Conferences

Journals

  1. Zihao Wang, Yoichi Takeda
    Amorphization and structural modification of the oxide film of Ni-based alloy by in-situ H charging in high temperature high pressure water environment
    Corrosion Science, 166 (2020) 108474, 6 pages.
  2. Zihao Wang, Yoichi Takeda
    Mechanistic understanding of the role of hydrogen in modification of oxide film of alloy 600 in high temperature high pressure water Environment
    Corrosion Science, 170 (2020) 108656, 10pages. Zihao Wang, Yoichi Takeda
  3. Tatsuya Ishikawa, Yuji Ozawa, Masashi Saito, Susumu Nakano, Yoichi Takeda
    Analysis of Localized Oxides and Oxide Films Formed on Alloy 625 and 617 in Supercritical Water and Superheated Steam Environments at 750°C
    Mechanical Engineering Journal, 4, 5 (2017), 17-00013.
  4. Choongmoo SHIM, Yoichi TAKEDA, and Tetuso SHOJI
    Fatigue life prediction of 316 stainless steel in simulated PWR primary water by time domain analysis based on short fatigue crack growth behavior
    Mechanical Engineering Journal, 4, 4 (2017), 17-00035.
  5. Kojun SUZUKI, SUsumu NAKANO, Keiichi SEKI, Yoichi TAKEDA, Tadaharu KISHIBE
    A Dynamic Simulation of a 150 kW Class Advanced Microturbine System Using Humid Air Turbine Cycle
    Journal of the Gas Turbine Society of Japan, 45, 3 (2017), 60-67. in Japanese.
  6. Lianlian Wu, Yoichi Takeda, Tetsuo Shoji, Mitsuo Yamashita and Sakae Izumi
    Effect of Reversed Austenite on the Stress Corrosion Cracking of Modified 17-4PH Stainless Steel
    Corrosion, 73, 6 (2017), 704-712.
  7. Lianlian Wu, Yoichi Takeda, Hiroki Morita and Tetsuo Shoji
    A Comparison of Stress Corrosion Cracking Susceptibility of Steam Turbine Blade Materials for Geothermal Plants
    Corrosion, 73, 2 (2017), 125-137.
  8. Lianlian Wu, Yoichi Takeda, Tetsuo Shoji, Mitsuo Yamashita and Sakae Izumi
    The Influence of Tempering Treatment on the Microstructure Evolution and Corrosion Resistance of Precipitation Hardening 17-4 Stainless Steel
    Corrosion, 72, 9 (2016), 1083-1094.
  9. Yu MATSUZAKI, Susumu NAKANO, Harumi TORIYAMA, Youichi TAKEDA, Kunihiro SATOU
    A Study on Disruption Patterns of Water Film Splashed into Air Flow
    Journal of the Gas Turbine Society of Japan, 43,6 (2015), 65-71. in Japanese
  10. Keiichi SEKI, Susumu NAKANO, Yoichi TAKEDA
    Dynamic Simulations of Microturbines
    Journal of the Gas Turbine Society of Japan, 43,3 (2015), 68-74. in Japanese

International Conference Proceedings

  1. Daisuke Ito, Susumu Nakano, Yu Matsuzaki, Yoichi Takeda
    Effect of plate edge thickness on breakup patterns and coarse droplet generation when a water film splashes from the plate edge into airflows
    18th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC 18)
    November 23- 26, 2020, Online
  2. Hiroki Nonomura,Susumu Nakano,Yoichi Takeda
    A FUNDAMENTAL STUDY ON A GAS TURBINE SYSTEM WITH OVERGROUND COMPRESSED AIR ENERGY STORAGE (CAES) FOR LOAD FOLLOWING
    GPPS Chania20
    September 7-9, 2020, Online
  3. Masumi Yoshida, Kosuke Araki, Yoichi Takeda, Susumu Nakano
    CHARACTERIZATION OF PRECIPITATES AND FORMED OXIDES IN FATIGUE CRACK OF ALLOY 617 IN A STEAM ENVIRONMENT AT 750°C
    ASME 2020 POWER Conference, ICONE28-POWER2020 August 4-5, 2020, Virtual Conference, Online
  4. Yoichi Takeda, Yuji OZAWA, Nur Farahanis ISMAIL, Susumu NAKANO
    Comparison of Fatigue Crack Growth Rate of Aged CrMo Steel in Superheated Steam and Air Environments
    Proceedings of the International Conference on Power Ingineeering-2019(ICOPE2019), October 2019, Paper No. JSME-32.
  5. Kosuke ARAKI, Masumi YOSHIDA, Yuji OZAWA, Yoichi TAKEDA and Susumu NAKANO
    Crack Path and Oxidation behavior during Crack Growth of Alloy 617 in Stream Environment at 750ºC
    Proceedings of the International Conference on Power Ingineeering-2019(ICOPE2019), October 2019, Paper No. JSME-30
  6. Zihao WANG and Yoichi TAKEDA
    Hydrogen Assisted Oxidation Behavior of Alloy 600 in High Temperature Air Environment by in-situ H Charging Method
    Proceedings of the 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors , November 2019, pp. 1304-1310.
  7. Zihao WANG and Yoichi TAKEDA
    Elemental distribution in oxide file formed by hydrogen penetration using dual-exposed specimen
    Proceedings of the International Congress on Advances in Nuclear Power Plants, May 2019, Paper No. 000039.
  8. Yoichi Takeda, Tatsuya Ishikawa, Yuji Ozawa, Susumu Nakano
    Characterization of oxide growth on Ni-base superalloys in supercritical water and superheated steam environments at 750℃
    Proceedings of the 15th Asia-Pacific Conference on Fracture and Strength(APCFS 2018), October 2018, Paper No. S7-04, pp. 74-75.
  9. Yuji Ozawa, Yoichi Takeda
    Dependence of Local Deformation Behavior Around Fatigue Crack Tip on Cyclic Loading Frequency in Steam and Inert Environments at 750℃
    Proceedings of the 15th Asia-Pacific Conference on Fracture and Strength(APCFS 2018), October 2018, Paper No. S6-09 pp.71.
  10. K. Suzuki, S. Nakano, K. Seki, Y. Takeda, T. Kishibe
    Effects of Water Injection on Generetor Output Power Augmention in a Microturbine
    ISROMAC 17 & ISIMet 2, December 2017
  11. Choongmoo Shim, Yoichi Takeda, Tetsuo Shoji
    CONTINUITY OF ENVIRONMENTALLY ASSISTED FATIGUE AND STRESS CORROSION CRACKING BASED ON SHORT CRACK GROWTH BEHAVIOR OF 316 STAINLESS STEEL IN SIMULATED PWR PRIMARY WATER
    Proceedings of the ASME 2017 Pressure Vessels and Piping Conference PVP2017
    July 16-20, 2017, Waikoloa, Hawaii, USA
  12. Yuji Ozawa, Tatsuya Ishikawa, Yoichi Takeda
    CHARACTERIZATION OF CRACK TIP DAMAGE ZONE FORMATION ON ALLOY 625 DURING FATIGUE CRCK GROWTH AT 750℃ BY TRANSMISSION EBSD METHOD
    ASME 2017 Power Conference Joint With ICOPE-17
    June 26-30, 2017, Charlotte, North Carolina, USA
  13. ISHIKAWA Tatsuya, OZAWA Yuji, SAITO Masashi, NAKANO Susumu, TAKEDA Yoichi
    Oxidation Characteristics of Ni-Base Superalloys in Supercritical Water and Superheated Steam Environments at 750℃
    APCFS2016: Asia-Pacific Conference on Fracture and Strength 2016
    September19-22, 2016, Toyama, Japan
  14. Yuji OZAWA, Masashi SAITO and Yoichi TAKEDA
    Dependence of crack growth rate on cyclic loading period of alloy 625 in high temperature steam and dry gas environments
    Proceedings of the International Conference on Power Engineering-15(ICOPE15)
    November 30-December 4, 2015, Yokohama, Japan
  15. Yu MATSUZAKI, Susumu NAKANO, Yoichi TAKEDA, Kunihiro SATOU
    A fundamental study on breakup patterns of water film splashed into air flows
    Proceedings of the International Conference on Power Engineering-15(ICOPE15)
    November 30-December 4, 2015, Yokohama, Japan
  16. Keiichi Seki, Susumu Nakano and Yoichi Takeda
    Dynamic Simulations for a Microturbine
    Proceedings of International Gas Turbine congress 2015
    November 15-20, 2015, Tokyo, Japan
  17. Yoichi Takeda, Yuji Ozawa, Masashi Saito, Tetsuo Shoji
    APPLICABILIITY OF THE CONTOURED DOUBLE CANTILEVER BEAM SPECIMEN FOR CRACK GROWTH TESTS UNDER CONSTANT STRESS INTENSITY FACTOR
    17th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors
    August 9-13, 2015, Ottawa, Ontario, Canada
  18. Choongmoo SHIM, Yoichi TAKEDA, Jiro KUNIYA and Tetsuo SHOJI
    Short Fatigue Crack Behavior during Low Cycle Fatigue Tests of 316 Stainless Steel in Simulated PWR Primary Water and Air
    Proceedings of 2nd International Conferecnce on Maintenance Science and Technology
    Nov, 2-5,2014, Kobe, Japan, 51-52

International Conference Oral Presentations

  1. Yoichi Takeda, Choongmoo Shim
    EFFECT OF CRACK LENGTH ON THE ENVIRONMENTAL ACCELERATION IN FATIGUE CRACK GROWTH OF 316 STAINLESS STEEL IN A SIMULATED PWR PRIMARY WATER
    ASME POWER 2020, August 4-5, 2020, Virtual Conference, Online
  2. Yoichi Takeda, Yuji OZAWA, Nur Farahanis ISMAIL, Susumu NAKANO
    Comparison of Fatigue Crack Growth Rate of Aged CrMo Steel in Superheated Steam and Air Environments
    Proceedings of the International Conference on Power Ingineeering-2019(ICOPE2019), October 2019, Paper No. JSME-32.
  3. Kosuke ARAKI, Masumi YOSHIDA, Yuji OZAWA, Yoichi TAKEDA and Susumu NAKANO
    Crack Path and Oxidation behavior during Crack Growth of Alloy 617 in Stream Environment at 750ºC
    Proceedings of the International Conference on Power Ingineeering-2019(ICOPE2019), October 2019, Paper No. JSME-30
  4. Zihao WANG and Yoichi TAKEDA
    Hydrogen Assisted Oxidation Behavior of Alloy 600 in High Temperature Air Environment by in-situ H Charging Method
    Proceedings of the 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors , November 2019, pp. 1304-1310.
  5. Zihao WANG and Yoichi TAKEDA
    Elemental distribution in oxide file formed by hydrogen penetration using dual-exposed specimen
    Proceedings of the International Congress on Advances in Nuclear Power Plants, May 2019, Paper No. 000039.
  6. Yoichi Takeda, Tatsuya Ishikawa, Yuji Ozawa, Susumu Nakano
    Characterization of oxide growth on Ni-base superalloys in supercritical water and superheated steam environments at 750℃
    Proceedings of the 15th Asia-Pacific Conference on Fracture and Strength(APCFS 2018), October 2018, Paper No. S7-04, pp. 74-75.
  7. Yuji Ozawa, Yoichi Takeda
    Dependence of Local Deformation Behavior Around Fatigue Crack Tip on Cyclic Loading Frequency in Steam and Inert Environments at 750℃
    Proceedings of the 15th Asia-Pacific Conference on Fracture and Strength(APCFS 2018), October 2018, Paper No. S6-09 pp.71.
  8. K. Suzuki, S. Nakano, K. Seki, Y. Takeda, T. Kishibe
    Effects of Water Injection on Generetor Output Power Augmention in a Microturbine
    ISROMAC 17 & ISIMet 2, December 2017
  9. Choongmoo Shim, Yoichi Takeda and Tetsuo Shoji
    Environmentally-Assisted Fatigue and Stress Corrosion Cracking Behavior of 316 Stainless Steel through Crack Initiation Tests in the Simulated PWR Environment
    Annual meeting of the International Cooperating Group on Environmentally Assisted Cracking of Water Reactor Materials, ICG-EAC2017, Chester, UK, May 7-12.
  10. Masashi SAITO, Yuji OZAWA, Susumu NAKANO, Yoichi TAKEDA
    Effect of Cyclic Loading Period on Oxidation Behavior and Crack Growth Rate of alloy 625 at 750℃
    The 10th International Conference On FRACTURE & STRENGTH of SOLIDS(FEOFS2016),August 29th, 2016 in Tokyo
  11. Choongmoo Shim, Yoichi Takeda, Tetsuo Shoji, Xiangyu Zhong, Shirish Chandarakant Bali
    Short Crack Behavior of Austenitic Stainless Steels in Simulated PWR Primary Water during Fatigue Damage and Monotonid Deformation
    28th September-1st October, 2015, Sevilla, Spain
  12. Yu Matsuzaki, Susumu Nakano, Yoichi Takeda
    A fundamental study on breakup patterns of water film splashed into air flow
    1st UNITEN-Tohoku University International Workshop on Energy, Materials and Reliability 2015 Febrauary 23-24, 2015 in Malaysia
  13. Keiichi SEKI, Susumu NAKANO, Yoichi TAKEDA
    Dynamics Simulations of Microturbines
    1st UNITEN-Tohoku University International Workshop on Energy, materials and Reliability 2015 February 23-24, 2015 in Malaysia
  14. Takamichi TOKUNAGA, Yoichi TAKEDA, Akio OHJI
    Evaluation of crack initiation behavior on nickel base superalloys in a steam environment at 750C
    The First Tsinghua Univ.—Tohoku Univ. Mini-Workshop in Tsinghua (2013) -International Workshop on Energy Materials and Reliability, January 26-27, 2013, Beijing
  15. Yoichi TAKEDA, Hiroki MORITA, Akio OHJI
    Transition behavior of cracking path of alloy 625 under cyclic loading in a steam environment at 750C
    The First Tsinghua Univ.—Tohoku Univ. Mini-Workshop in Tsinghua (2013) -International Workshop on Energy Materials and Reliability, February 26-27, 2013, Beijing
  16. Yoichi TAKEDA
    Evaluation of oxidation localization behavior based on oxide / metal interface morphology during crack initiation
    The 5th ELyT Workshop 2013 in Zao To-o-gatta, February 17-20, 2013, Miyagi
  17. Hiroki MORITA, Yoichi TAKEDA
    Crack paths of Ni-base superalloys under cyclic loading in a steam environment at 750C
    The 5th ELyT Workshop 2013 in Zao To-o-gatta, February 17-20, 2013, Miyagi
  18. Yoichi Takeda
    Characterization of oxidation localization behavior of 316L and 316LN after oxidation tests using Halden reactor
    Halden Project, IASCC review meeting, October 17-18, 2012, Halden, Norway